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Finding the Fourth Proportional to 18,518.67, 25,522.02 and 16,368.12

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Solution

The fourth proportional to 18,518.67, 25,522.02 and 16,368.12 is: 22,558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.67 : 25,522.02 = 16,368.12 : x
  2. Step 2: Convert to fraction form
    18,518.67/25,522.02 = 16,368.12/x
  3. Step 3: Cross multiply
    18,518.67x = 25,522.02 × 16,368.12
  4. Step 4: Simplify right side
    18,518.67x = 417,747,486.00
  5. Step 5: Solve for x
    x = 417,747,486.00/18,518.67
  6. Step 6: Final answer
    x = 22,558.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.